There’s a Tumblr page called The Composites: http://thecomposites.tumblr.com They do police sketch-style pics of literary characters based on the description.

Here’s their James Bond:

James Bond, Casino Royal & Moonraker, Ian Fleming

“Bond reminds me rather of Hoagy Carmichael, but there is something cold and ruthless” …As he tied his thin, double-ended, black satin tie, he paused for a moment and examined himself levelly in the mirror. His grey-blue eyes looked calmly back with a hint of ironical inquiry and the short lock of black hair which would never stay in place slowly subsided to form a thick comma above his right eyebrow. With the thin vertical scar down his right cheek the general effect was faintly piratical. Not much of Hoagy Carmichael there, thought Bond, as he filled a flat, light gunmetal box with fifty of the Morland cigarettes with the triple gold band. (Casino Royal)

Rather like Hoagy Carmichael in a way. That black hair falling down over the right eyebrow. Much the same bones. But there was something a bit cruel in the mouth, and the eyes were cold. (Moonraker)